ST75185
DRIVER SWITCHING CHARACTERISTICS
(V
DD
= 12V, V
SS
= -12V, V
CC
= 5V, T
A
= 25 °C)
Value
Symbol
t
PLH
t
PHL
t
TLH
Parameter
Test Conditions
Min.
Propagation Delay Time, Low to High R
L
= 3 to 7 KΩ C
L
= 15 pF
Level Output
(See Figure 3, 4)
Propagation Delay Time, High to Low R
L
= 3 to 7 KΩ C
L
= 15 pF
Level Output
(See Figure 3, 4)
Transition Time Low to High Level
R
L
= 3 to 7 KΩ C
L
= 15 pF
Output
(See Figure 3, 4)
R
L
= 3 to 7 KΩ C
L
= 2500 pF
(Note 6, See Figure 3, 4)
Transition Time High to Low Level
R
L
= 3 to 7 KΩ C
L
= 15 pF
Output
(See Figure 3, 4)
R
L
= 3 to 7 KΩ C
L
= 2500 pF
(Note 6, See Figure 3, 4)
Typ.
315
75
60
1.7
40
1.5
Max.
500
175
100
2.5
7.5
2.5
ns
ns
ns
µs
ns
µs
Unit
t
THL
NOTE 6: Measured between -3V and 3V points of output waveform (EIA-232-E conditions), all unused inputs are tied.
RECEIVER ELECTRICAL CHARACTERISTICS OVER OPERATING CONDITIONS
Value
Symbol
V
T+
V
T-
V
hys
V
OH
V
OL
I
IH
I
IL
I
OS
Parameter
Positive Going Threshold Voltage
Negative Going Threshold Voltage
Input Hysteresis (V
T
+ - V
T
-)
High Level Output Voltage
Low Level Output Voltage
High Level Input Current
Low Level Input Current
Short-Circuit Output Current
I
OH
= -0.5mA
V
I
= 3 V
V
I
= 3 V
V
I
= -3 V
V
IH
= 0.75 V
Inputs Open
I
OL
= 10 mA
(See Figure 6)
(See Figure 6)
Test Conditions
Min.
(See Figure 6)
T
A
= 25 °C (See Figure 6)
0.75
0.5
2.6
2.6
0.2
3.6
0.43
-3.6
-0.43
-3.4
-12
mA
-8.3
mA
0.45
8.3
V
mA
4
5
Typ.
2.2
0.97
Max.
2.4
V
V
V
V
Unit
V
I
= 25 V (See Figure 6)
V
I
= -25 V (See Figure 6)
V
I
= 0 V V
O
= 0 V
(See Figure 5)
All typical values are at TA = 25°C, VCC = 5V, VDD = 9V and VSS=-9V
RECEIVER SWITCHING CHARACTERISTICS
(V
DD
= 12V, V
SS
= -12V, V
CC
= 5V T
A
= 25°C)
Value
Symbol
t
PLH
t
PHL
t
TLH
t
THL
Parameter
Test Conditions
Min.
Propagation Delay Time Low to High R
L
= 5 KΩ C
L
=
Level Output
(See Figure 6)
Propagation Delay Time High to Low R
L
= 5 KΩ C
L
=
Level Output
(See Figure 6)
Transition Time Low to High Level
R
L
= 5 KΩ C
L
=
Output
(See Figure 6)
Transition Time High to Low Level
R
L
= 5 KΩ C
L
=
Output
(See Figure 6)
50 pF
50 pF
50 pF
50 pF
Typ.
400
70
200
20
Max.
1000
150
525
60
ns
ns
ns
ns
Unit
5/18
STMICROELECTRONICS [ STMICROELECTRONICS ]
